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13 December 2018 Limited Genetic Variability in Native Buckwheats (Eriogonum: Polygonaceae) on San Clemente Island
Lynn Riley, Mitchell E. McGlaughlin, Kaius Helenurm
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Abstract

California Channel Island buckwheats are important components of scrub communities on the Channel Islands. A long history of overgrazing by introduced herbivores on San Clemente Island has contributed to scrub vegetation loss and population declines in 2 endemic island taxa, Eriogonum giganteum var. formosum and E. grande var. grande. Since herbivore removal, Eriogonum species, which are early colonizers of disturbed habitats, have been increasing across the island. These increases are thought to facilitate further recovery of the native flora because the shrubs act as nurse plants and improve the soil profile for other native species.

© 2018
Lynn Riley, Mitchell E. McGlaughlin, and Kaius Helenurm "Limited Genetic Variability in Native Buckwheats (Eriogonum: Polygonaceae) on San Clemente Island," Western North American Naturalist 78(4), 722-738, (13 December 2018). https://doi.org/10.3398/064.078.0413
Received: 28 February 2017; Accepted: 14 March 2018; Published: 13 December 2018
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